Steam-heating apparatus.



E. E. GOLD.

-STEAM HEATING APPARATUS.

APPLICATION FILED ocr. 10, 1917.

1,295,302. Patented Feb.25,1919.

INVENTOR M4 9% v By lorneys,

LQMOM/n EDWARD neotnfor' NEW YORK, N. Y., AssIeNoR 'ro GOLD oaR HEATING a LIGHTING. o oMEANY, or. NEW YORK, N. Y., A coRRoRATIoN 0E NEW YORK.

STEAM-HEATING APPARATUS.

Leeoz..

To all'whom t may concern Be itlmown thatV I, EDWARD E. GOLD, a citizenof` the United States of America, residing in the: borough'k of Manhattan, city, county, and State of New.qYork, have invented certain new and useful Improvements in Steam-Heating Apparatus, of which the following. is aspecification.

This invention;y relates to steam heatingv systems of the general character set forth inlmy Patent No. 1,168,720, dated January 1S, 1916. A-n object-ofthe present invention is. to substitute for thel bow thermostat shown in that patent, a diaphragmthermostat or thermostatic vessel consisting lof a disk-shaped device of thin metal containing a highly volatile liquid. Such diaphragm th'ermostats are much more sensitive and possess many advantages which are Well recognized in the art.

In the. drawings,.-

Figure 1 is a vertical mid-section of the improved structure, taken on the line 1-1 of Fig. 2;

Fig. 2 is a vertical-transverse section on the line 2f-2 in Fig. 1;v

Fig. 3 is aperspective view of a detail;

Fig. 4L shows a fragment of Fig. 1, illustrating a stop cap.A

- Theshell or casing A, with its cover B, thesteam-inlet connection C, steam valve D, injector noZzle'Fi, outlet F to the radiator, return connection G from the radiator, and drip connection I-I, are all of the known construction and substantiallyl similar to that set forth in my said patent. The valve D ismounted on a primary stem I pressed back/by a1 spring J in a known manner. Against this stem abuts the end of a secondary-stemfor stem section K which receives (indirectly) the thrust of the thermostat. The subdivision ,of the valve stem into-members I and K isconvenient but not essential.

The yth'ermostatM isfthe usual construction of diaphragm thermostat, being mounted on aixed abutment N, which is conveniently attached to the cover B. This attachment also provides a pivotal-bearing a for a lever P whichreceives atl or near its middle the thrust of the thermostat, and atV its free end communicates this thrust tothe stem K to close the valve D. f

Inasmuch as the diaphragm has a substantially invariable range of expansion and contraction between the extremes of heat Specification of Letters Patent.

Patented Feb. 25'; 1919.

Application led'October 10, 19.17. Serial No. 195,676.

and coldto which itis subjected, andas the valve D has a fixed play to and from its seat, it is necessary to provide for bringing these respective movements into worlringrelation in order that the apparatus may operate correctly. To dovthis in the practical installing of the parts, some means must be provided for adjusting thepoint of* engagement of the lever P with-the valve stem. In the construction shown this is accomplished by making the secondary stem K in two parts, K and K', which arefrelatively adjustable, the part K carrying a collar b which receives the thrust of'thelever,.and the other part K conveying this thrustto the valve stem I. A convenient-construction is that show-n, in which the stem K isreduced at c to smaller diameter, and the stem,K is formed as a tube CZ which has the collar b fixed on it at one end, andaty the* other end is counterbored and internally threaded to receive an adjusting screw e, the innerk end of which abuts against the reduced stem c. By screwing the screw in or out the relation of the two stems may be varied, in orderl to insure that the normal expansion of the thermostat, when heated by the exhaust steam or vapor from the radiator, shall close the valve D. To prevent` turning the stem d when the screw e is turned, the collar I) is formed with a flat po-rtion (Fig.y1) which is engaged in the-forked end ofthe leverfP. To prevent tampering with the screw e, and also to make the point of emergence of the stem l steam-tight, an outer cap 7 is screwed on, engaging preferably With a threaded sleeve or nipple g.

Valve devices of this character are constructed to utilize the steaminjector E to .cause anupward suction through-a branch F communicating with the ychamber within the casing A in orderwhen the device is applied at the top of a high radiator (as sho-wn inFig. 1 of my said patent), to draW, exhaust steam from the lower end of the radiator upward,.so that the heat` of this steam may operate the thermostat M.V An attendant: disadvantage of this, however, is that the hot condensation falls. down through the passage F and would drop onto the-thermostat if means were-not provided todivert it. According to my present construction, this diversion is effected by means of a shield Q of sheet-metal, which is placed in the position shown best in Fig. 2, being upheld by its ends resting on the sleeves g it (Fig. 1), and being held against displacement by ears z' c' (Fig. 3). This shield does not close the opening F, but diverts any falling condensation and directs it down at the sides, where it is not likely to inluence the thermostat.

When the thermostatic valve is set at a level about as low as the bottom of the radiator, the injector E is unnecessary and it is then desirable to close ofi' the opening F, for which purpose I provide a screwcap R which screws on Ithe threaded end of the connectionsthrough which the passage F is formed, in the manner shown in Fig. 4. This enables the same structure to be used in either loca-tion by making this itriing change, a'. e., -adding R and discarding the shield Q. Y Y

The proportions and details of construction may be considerably varied without departing from the present invention, as will be apparent;

The present invention enables the former style of thermostatic valve with a bo-W thermostat to be readily reconstructed to use the more `desirable diaphragm thermostat. To do this the cover plate is re.- moved, the bow thermostat and the stem which engages it and communicates its movement to the valve stem, are taken out, the stem K K is put in place in lieu of the stem removed, and the lever P, thermostat M, and abutment N, are inserted in lieu of the bow thermostat.

With the construction shown the abutment N is shown as formed integrally with the front plate or cover B, and by this construction this cover B is substituted for the cover heretofore used, the parts being assembled by engaging the forked end of the lever P with the stem part K', and afterward swinging` the cover down into place against the casing. The adjusting of the screw e is made after the parts are thus assembled, and inally the cap f is screwed on.

I claim as my invention 1. In a steam inlet valve of the type described a narrow and substantially flat casing with a steam valve at one end and a valve stem traversing the casing longitudinally and the casing including a separable wall, a diaphragm thermostatY carried by said 'separable wall and arranged Vtransversely in the casing, and a lever receivingY the expansive thrust. of the thermostat and transmitting it to the valve stem. Y

.2. The structure of claim 1 including a 'valve stem formedY in two sections with ad- Copies of this'v patent may be obtained forV Vsigned my name.

justing means accessible voutside the casing for varying their longitudinal relation.l

3. In a steam inlet valve fof'the type described a narrow and substantially flat casing witha steam valve at one end and a valve stem traversing the casing longitudinally and formed in two, sections with adjusting means for varying their longitudinal relation, a diaphragm thermostat and a lever receiving the expansive thrust of the thermostat, said leverhaving a forked end and one section of the valve stem having a collar with a projection entering the forked end of the lever so as to transmit the movement of the thermostat to the valve stem and'prevent turning of the vStem during adjustment.

t. The structure of claim 2 with the addition of `a cap for inclosing the protruding end of the valve stem and adjusting means.

'5. The structure of claim 1 with the addition of a deecting shield to receive condensation and prevent its falling on the thermostat. Y

`6. In a steam inlet valve of the type including a narrow and substantially flat casing with a steam valve at one end and a valve stem traversing the casing longitudinally, anda chamber through which the valve stem extends, the 'combination Vtherewith of a thermostat operatively connected with said valve, an injector, a suction opening connecting the chamber and the4 injector, and a removable shield mounted in the chamber under said opening and above the valve stem and consisting of a plate adapted to intercept condensation Vfalling from said opening and divert iitto the opposite side Walls of the casing. v A

7. The structure of claim 6, with the deflecting plate provided with dependent ears engaging the side walls of the chamber to hold ithe plate in position.

8. The structure of claim 1, with the casing inclosing the thermostat including a cover on one side and an abutment for theV thermostat mounted on said cover whereby the thermostat and cover are removable together.

9. The structure of claim 8, the cover carrying also the pivotal connection YforY the lever so that removal of the cover carries with it the thermostat and lever. Y

aIn witness whereof, I `have hereunto Witness:` j l HARRY PoInLoN. I

Washington, D. C.

EDWARD E. GOLD'. 

